Improvement in guides for silk-winders



l. H. CAMPBELL.

Guides fqr Silk-Winders. N0. 137,417. PatentedAprilLSB.

UNITED JAMES H. CAMPBELL, 0E WILLIMANTIC, CONNECTICUT.Y

llVlPROi/EMENT IN GUIDES FOR SILKWINDERSV.

Specification forming part of Letters Patent No. 137,417, dated April l,1873; application iiled September 25, 1872.

To all whom it may concern:

Be it. known that I, J AMES H. CAMPBELL, of Willimantic, county ofWindham, State of Connecticut, have invented a new and usefulImprovement in Machine for Winding Silk, of whichthe following is afull, clear, and exact description, reference being had to theaccompanying drawing makin g part of this specilication, in which-Figure l is a perspective view. Fig. 2 is a longitudinal section. Fig. 3represents a modiiication of my invention. Y

Similar letters of reference denote corresponding parts in all thefigures.

It is well known by all who are familiar with the manufacture of silkgoods that the raw silk is of such a hard Wiry nature that it will whenrunning rapidly over a stationary guide cut into it, thus making a newpath for itself, and rendering the operation of said guide veryimperfect when winding bobbins, because these new or false paths willnot accommodate the various sizes of silk that are necessary to run overthe same guide, and thus cause a great waste of material and labor bybreaking down 7 the silk at every knot or enlarged place thereon. With aview to obviate this defect revolving guides have been employed; but asheretofore constructed they produced so much friction upon theirbearings that the slight friction of the thread of silk upon thissurface is not sufficient to keep them in motion 5 hence they willsometimes stop and cut in the same manner that an ordinary stationaryguide does. The object of this invention is to produce a revolving guidewhich shall run with but little friction, whereby the cutting action ofthe silk above referred to is obviated. To this end the inventionconsists'in mounting a revolving guide in the opposing ends of twoshafts or arms, the said shafts or arms being made adjustablelongitudinally, whereby the aforementioned advantages are attained, aswill be hereinafter fully explained.

In the drawing, A represents the traverse beam or bar, which may be ofany usual or approved construction, as may be the bobbins and othermechanism not particularly referred to in this specification, and whichneed not therefore be shown or described. B is the bedplate, madepreferably of metal, and adjusted on the traverse-beam by means ofscrews, which pass through slots b, or other equivalent device. C areknee-standards formed in one piece with or fastened to bed-piece B. Inmany cases it may be advantageous to have one or both of theseknee-standards fastened to the bed-plate by set-screws, and be capableof being turned around, thus releasing the other parts, and making itconvenient to clean, oil, or change any of them. D D are supporting armsor bars mounted in standards 0. In the drawing I have represented bars DD as being screwed into the standards G in such manner that they may beadjusted thereinthat is, their inner ends may be made to approach orrecede from each other-for a purpose which will be explained. It isapparent that the standards might be moved upon the bed-plate toaccomplish the same end. E is a grooved guide wheel or sheave, mountedupon pivot-bearings formed on the ends of arms D D, and it will bereadily seen that by adjusting said arms the guide may be alwaysmaintained in the desired position relative to the bed-plate and thereceiving-bobbin.

Now, it will be easily seen that any lateral motion of the guide Erelative to the traverse beam will counteract the purpose of t-hetraverse-beam, it being the oce of this traversebeam to so carry therunning silk as to perfectly fill the receiving-bobbin from end to end.Anything less than a perfect bobbin-t'. e., having the silk piled to anyextent in the center of the bobbin more than at the bobbin ends orheadscauses a proportionate amount of waste of material, as the higherportions of the silk will slide down toward either bobbinhead, andprevent its being rewound from the imperfectly-shaped bobbin.- To remedythis is one of the offices of the adjustable arms I) D, as thepivot-bearings on the ends of said arms present but very slight surfaceto sides of guide E, and thus perfectly control its lateral motion andstill cause but the slightest friction. d are jam-nuts on arms D tosecurelyllock them in position. F are metallic guides employed toconduct the silk to guide E. They are made preferably of metal, andsecured to bed-plate B by means of in-turning and clasping shanks orlips f, which are made preferably elastic, and retain their position bytheir own gripe, or are held by being clasped between the bed-plateandthe traverse-beam.

Many other methods might be adopted for fastening the guidesF in place;as, for instance, the shanks f might be secured to the bed-plate bymeans of a set-screw; or grooves might b e made in the sides of thebed-plate, into Which the lips or Shanks.;C could be clasped by theirown elasticity.

rIhe operation of this device will be understood without furtherdescription; and it will be readily seen that by the employment of thepivot-bearing to support and adjust the revolving guide E the frictionis very much reduced, and that my method of supporting the guides F uponthe bed-plate enables me to use very short arms to mount the guide E,thus making a cheap, compact, andelective construction.

As a modiiication of this construction, I may mount the guide eitherloosely or rigidly upon a small spindle, e, Fig. 3, supporting thespindle in sockets in the ends of arms D D, the position of the guidebeing adjusted by the opposing ends of the arms. In the practicalworking of this modication, in many cases it would be better to have thespindle so tted that it could be removed from the guide and be replacedby a new one as it became worn, because this could be done with muchless expense than replacing the whole guide and spindie.

It is evident that spindle e might be made in one piece with one of thearms; but for convenience of manufacture and of replacing, I prefer tomake them separate; and a small spindle might be used with stationaryarms arranged upon each side of the guide to prevent lateral movement;but there will always be more orless wear of the ends of the arms, afterwhich the guide will not feed the bobbins perfectly. When desired,oil-holes e may be bored in the guide F in order that the pivotbearingsvmay be oiled without removing guide F from the position shown in thedrawlng.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is v l. The herein-described device forguiding silk or other thread to a bobbin, consisting of a grooved pulleyor sheave mounted upon the two adjacent ends of the arms D D attached tothe bed-plate B.

2.v The combination of the sheave E and the supporting-arms D D with theguides F F.

3. The combination of the she-ave E and the supporting-arms .D D withthe traverse-beam A.

In testimony whereof l have hereunto set my hand this 14th day ofSeptember, A. D. 1872.

' JAMES H. CAMPBELL.

Witnesses:

HENRY F. ROYCE, N. D. WEBSTER.

